Apple is fond of its web browser, Safari, even to the extent that some readers with other preferences find it difficult to consistently get Firefox, Chrome, Opera, or other browsers to open links to web pages in other apps.
The first thing to double-check is macOS’s systemwide browser default preference. Go to > System Settings > Desktop & Dock. Under “Default web browser,” check that your preferred browser is selected. Even if it is, some readers report changing it fixed their link problem:
- Select Safari.
- Quit System Settings.
- Launch System Settings and return to Desktop & Dock.
- Choose your preferred browser.
- Quit System Settings.
Read more at Macworld.com